Is it necessary to remove the old roof before adding a new one?
We want to put a new pitched, timber trussed, colorbond roof over an existing flat Klip-Lok-type metal roof. Is it necessary to remove old roof?
Yes, it will be necessary to remove the Klip-Lok roofing before building roof frames that will support the new Colorbond lining. It would be difficult to marry the roof frames to the rest of the structure without firstly removing the Klip-Lok. You may also be required to submit a development application so check with your local council.